BIFUNCTIONAL PHENYL MONOPHOSPHONIC/SULFONIC ACID ION EXCHANGE RESIN AND PROCESS FOR USING THE SAME
摘要
A cross-linked water-insoluble ion exchange resin comprised of polymerized monomers having a phenyl ring is disclosed. A contemplated resin contains (i) polymerized phenyl ring-containing monomers having a phosphonic acid ligand linked to the phenyl ring, (ii) about 2 to about 5 millimoles per gram (mmol/g) of phosphorus as phosphonic acid ligands, and (iii) a sufficient amount of a sulfonic acid ligand such that the ratio of mmol/g of phosphonic acid to mmol/g sulfonic acid is up to 3:1. A process for removing polyvalent metal cations from aqueous solution, and a process for removing iron(III) cations from acidic copper(II) cation-containing solutions that utilize the contemplated resin or other resins are disclosed.
申请公布号
EP1117466(A4)
申请公布日期
2003.02.26
申请号
EP19990940797
申请日期
1999.07.02
申请人
ARCH DEVELOPMENT CORPORATION;THE UNIVERSITY OF TENNESSEE RESEARCH CORPORATION
发明人
SPIRO, ALEXANDRATOS;SHELLEY, CHRISTOPHER, A.;HORWITZ, E., PHILIP;CHIARIZIA, RENATO;GULA, MICHAEL, J.;SUI, XUE